From patchwork Mon Mar 7 06:52:24 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Leilk Liu X-Patchwork-Id: 12771255 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 76692C433FE for ; Mon, 7 Mar 2022 06:52:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235010AbiCGGxk (ORCPT ); Mon, 7 Mar 2022 01:53:40 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36574 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231913AbiCGGxi (ORCPT ); Mon, 7 Mar 2022 01:53:38 -0500 Received: from mailgw01.mediatek.com (unknown [60.244.123.138]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5233B1CFD8; Sun, 6 Mar 2022 22:52:40 -0800 (PST) X-UUID: 57cd627a09614baf91696e6a4d70c9fc-20220307 X-UUID: 57cd627a09614baf91696e6a4d70c9fc-20220307 Received: from mtkmbs10n2.mediatek.inc [(172.21.101.183)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1803586342; Mon, 07 Mar 2022 14:52:35 +0800 Received: from mtkcas10.mediatek.inc (172.21.101.39) by mtkmbs10n1.mediatek.inc (172.21.101.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.792.15; Mon, 7 Mar 2022 14:52:34 +0800 Received: from localhost.localdomain (10.17.3.154) by mtkcas10.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Mon, 7 Mar 2022 14:52:33 +0800 From: Leilk Liu To: Mark Brown CC: Rob Herring , Matthias Brugger , , , , , , Leilk Liu Subject: [PATCH V3 1/7] spi: mediatek: support tick_delay without enhance_timing Date: Mon, 7 Mar 2022 14:52:24 +0800 Message-ID: <20220307065230.12655-2-leilk.liu@mediatek.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220307065230.12655-1-leilk.liu@mediatek.com> References: <20220307065230.12655-1-leilk.liu@mediatek.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org this patch support tick_delay bit[31:30] without enhance_timing feature. Fixes: f84d866ab43f("spi: mediatek: add tick_delay support") Signed-off-by: Leilk Liu Reviewed-by: AngeloGioacchino Del Regno --- drivers/spi/spi-mt65xx.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) diff --git a/drivers/spi/spi-mt65xx.c b/drivers/spi/spi-mt65xx.c index bbfeb8046c17..3fd89548ec3c 100644 --- a/drivers/spi/spi-mt65xx.c +++ b/drivers/spi/spi-mt65xx.c @@ -43,8 +43,11 @@ #define SPI_CFG1_PACKET_LOOP_OFFSET 8 #define SPI_CFG1_PACKET_LENGTH_OFFSET 16 #define SPI_CFG1_GET_TICK_DLY_OFFSET 29 +#define SPI_CFG1_GET_TICK_DLY_OFFSET_V1 30 #define SPI_CFG1_GET_TICK_DLY_MASK 0xe0000000 +#define SPI_CFG1_GET_TICK_DLY_MASK_V1 0xc0000000 + #define SPI_CFG1_CS_IDLE_MASK 0xff #define SPI_CFG1_PACKET_LOOP_MASK 0xff00 #define SPI_CFG1_PACKET_LENGTH_MASK 0x3ff0000 @@ -346,9 +349,15 @@ static int mtk_spi_prepare_message(struct spi_master *master, /* tick delay */ reg_val = readl(mdata->base + SPI_CFG1_REG); - reg_val &= ~SPI_CFG1_GET_TICK_DLY_MASK; - reg_val |= ((chip_config->tick_delay & 0x7) - << SPI_CFG1_GET_TICK_DLY_OFFSET); + if (mdata->dev_comp->enhance_timing) { + reg_val &= ~SPI_CFG1_GET_TICK_DLY_MASK; + reg_val |= ((chip_config->tick_delay & 0x7) + << SPI_CFG1_GET_TICK_DLY_OFFSET); + } else { + reg_val &= ~SPI_CFG1_GET_TICK_DLY_MASK_V1; + reg_val |= ((chip_config->tick_delay & 0x3) + << SPI_CFG1_GET_TICK_DLY_OFFSET_V1); + } writel(reg_val, mdata->base + SPI_CFG1_REG); /* set hw cs timing */